1200mAh Tattoo Power Supply Kit Complete Professional Cartridge Needle Cordless Tattoo Pen Kit with RCA Clip Cord Item Type: Tattoo Pen Power Supply Kits Material: Aluminum alloy, electronic components Product Description: 1. Tattoo pen Needle: used for most of the tattoo cartridge needles on the market Interface: RCA interface Tattoo Pen Size: Length (without needle): Approx. 120mm / 4.7in Diameter: Approx. 34mm / 1.3in Stroke: Approx. 0 x 3.5mm / 0 x 0.14in Out of the Needle Length: Approx. 1-4mm / 0.04-0.16in RPM: 9V 10000RPM/min (drive silicone cartridge needle working speed, non idling speed) Starting Voltage: 5V Working Voltage: 4-12V (driving silicone cartridge needle) 2. Tattoo power supply Interface: RCA interface Battery: Built in lithium battery 1200mAh Power Supply Size: Approx. 80 x 26 x 26mm / 3.1 x 1 x 1in Input: DC5V 1A Output: 6V 7V 8V 9V 11V Charging Voltage: DC5V/1A, TYPE C charging port Characteristics: Input and output double charge and discharge protection (battery comes with overcharge and overdischarge protection, control board with short circuit overcharge and overdischarge protection for more safety) Charging Time: 2 hours (charging with a charger higher than 5V is strictly prohibited) Endurance: 8V voltage for 8 hours of continuous use Power Operation Instructions:  1. Long press the power button for 2 seconds to switch on and off. 2. Tap the power button 6V, 7V, 8V, 9V, 11V cycle, while the indicator increases with. 3. Each time the power on the default 10V strong start, 0.2 seconds to restore the display of the last used voltage memory. 4. button more than 2 seconds without use, automatically jump to the batterycapacity display, while the indicator is in the breathing flashing state, Indicator lights 1-5 represent 20%-100% power. Tap the power button to automatically return to adjust the voltage state.  5. When charging, the indicator light flashes to show the charging status, full indication of long light, while entering the overshoot protection. 6. The battery inside the charging current limit, the battery capacity of 1200MAH, more than 1A charger 3.5 hours to fill, 8V voltage output can be used continuously for about 8 hours (the voltage of the tattoo used is not the same, the use of time will be different, 8 hours is the theoretical value). 7. This product is mainly suitable for rotary tattoo machine, please do not use for coil tattoo machine. 8. This product does not support the use of while charging. 9. If a short circuit protection during use, just plug in the charger charging will automatically activate. Tattoo Pen Set Instructions:  Corded Operation: The tattoo machine will be installed on the needle, connect the RCA clip cord and power supply, foot pedal, start the power supply, adjust the voltage can be operated.  Cordless Operation: The tattoo machine will be connected to the RCA interface cordless tattoo power supply, adjust the appropriate voltage, you can operate.